JP6958551B2 - Cosmetic material - Google Patents

Description

The present invention relates to a decorative material for use in surface makeup of interiors and exteriors of buildings, fittings, furniture and the like. More specifically, the present invention relates to a decorative material capable of three-dimensionally expressing the unevenness obtained by the difference in surface gloss and expressing a pattern that can be seen only from a specific observation angle.

Conventionally, for example, a decorative material used for interior / exterior of a building, fittings, surface makeup of furniture, etc. is usually given a desired pattern such as a wood grain pattern or a stone grain pattern. In addition to simply expressing a pattern such as a wood grain pattern or a stone grain pattern in a two-dimensional manner, a decorative material that also expresses the unevenness of the surface of natural wood or stone in a three-dimensional manner is desired to have a high-class feel. It is widely used mainly for applications that are used.

As a method of expressing a three-dimensional unevenness on the surface of a decorative material together with a flat pattern, various methods have been conventionally devised and used properly according to the purpose. In particular, instead of actually forming irregularities on the surface of the decorative material, the gloss state (specifically, glossiness) of the surface of the part to be expressed as a concave portion or a convex portion is made different, which gives an optical illusion. There is a method of visually expressing the three-dimensional effect of unevenness by using. According to this method, even if the concave-convex shape does not actually exist, the relatively high-gloss portion is recognized as a convex portion and the low-gloss portion is recognized as a concave portion by the human eye.

Specifically, for example, after forming a transparent or translucent synthetic paint layer having a low gloss on the entire surface of the printed surface of the base material on which an appropriate pattern including a dent pattern is printed, the surface of the synthetic paint layer formed. A highly glossy transparent or translucent synthetic paint layer is formed on the portion excluding the portion corresponding to the dent pattern. Of course, by reversing the relationship between the high and low glosses, it is possible to obtain a decorative material in which the relationship between the unevenness is reversed.

According to such a method, a three-dimensional unevenness can be easily given to any base material by simply preparing two kinds of paints having different luster without requiring a special chemical or the like. be able to. Moreover, since the synthetic paint layer having different luster can be formed by a conventional printing method such as a gravure printing method following the formation of the pattern pattern (pattern ink layer), no special equipment is required and the production efficiency is high. It is easy to synchronize with the pattern. In addition, the thickness of the synthetic paint layer is much thinner than the height difference of the unevenness to be expressed, so the amount of resin used can be reduced, and it is also advantageous in terms of flexibility and excellent in bending workability. The decorative material can be easily realized. Further, since the surface of the decorative material does not have large irregularities, there is an advantage that contaminants do not stay in the recesses.

In view of these many advantages, cosmetic materials adopting this method have already been used in large quantities, but the fact is that they have not yet surpassed the method of actually forming irregularities in terms of luxury. To consider the reason, for example, according to the mechanical embossing method, it is possible to faithfully reproduce the uneven shape of a natural wood conduit or the like including the cross-sectional shape of the conduit or the like. On the other hand, in this method using two kinds of paints having different glosses, since there are two kinds of glossy stages on the surface, there are also two kinds of unevenness stages that can be expressed. Therefore, there is a problem that it is difficult to express an uneven shape having a slope portion whose depth (height) is continuously changed, such as a conduit of natural wood.

Therefore, in recent years, by providing a synthetic paint layer (hereinafter, also referred to as "gloss adjusting layer") having a slope portion whose depth has continuously changed, a slope like a natural wood conduit or the like is provided. A decorative material capable of expressing an uneven shape having a portion has been proposed (see, for example, Patent Document 1).

Japanese Patent No. 3629964

By the way, as mentioned above, as a design required for decorative materials, it has long been preferred to reproduce natural products (wood grain, stone grain, etc.), but nowadays, artificial patterns (geometric patterns and letters) are required. Etc.) are required to be expressed. These may be expressed by printing, but they can also be expressed by utilizing the unevenness obtained by the difference in gloss described above. When expressing a pattern by the difference in luster, the underlying pattern appears transparent, so it is possible not only to match the pattern with the pattern to give a sense of unevenness, but also to express a completely different pattern as a design. Is.
Here, as a method for adjusting the gloss of the gloss adjusting layer, a method of adding a gloss adjusting agent (matting agent) to a transparent resin as a binder is common. As the gloss adjusting agent, fine particles of an inorganic material or an organic material are mainly used, and in particular, fine particles of an inorganic material (particularly silica fine particles) have high matting ability and are widely used. By adding the gloss adjusting agent, the gloss adjusting agent imparts unevenness to the surface of the gloss adjusting layer, and the unevenness scatters light to obtain a matting effect. By adjusting the type and amount of these gloss adjusters, the required gloss can be freely created.

However, the unevenness imparted by the gloss adjusting agent is small with respect to the thickness of the gloss adjusting layer, and is much smaller than the unevenness imparted by the mechanical embossing method. Therefore, a phenomenon occurs in which the unevenness obtained due to the difference in gloss changes between the case where the surface of the decorative material is observed from the front and the case where the surface of the decorative material is observed from an angle. This is because when observed from an angle, the gloss (glossiness) of the relatively low gloss part increases, so the relatively high gloss (glossiness) part and the low gloss (glossiness) part This is because the difference in luster (difference in glossiness) from the above becomes small.
On the other hand, such a phenomenon is an important effect in some cases for design expression. That is, it is possible to design that the appearance is changed depending on the angle at which the pattern expressed by the difference in luster is observed, and the pattern that can be seen when observed from the front cannot be seen when observed from an angle.

An object of the present invention is to provide a decorative material capable of expressing a pattern that can be seen only from a specific observation angle in order to solve the above problems.

As a result of diligent studies, the present inventors set the thickness of the relatively low gloss adjusting layer and the particle size of the added matting agent within the optimum range to adjust the gloss when observed from an angle. We found that the gloss of the layers was positively increased and the pattern (design) expressed by the difference in gloss was made invisible.

In order to achieve the above object, the decorative material of one aspect of the present invention is partially provided on the first gloss adjusting layer provided on the base material and the first gloss adjusting layer, and the first gloss is provided. A second gloss adjusting layer having a gloss different from that of the adjusting layer is provided, and among the first gloss adjusting layer and the second gloss adjusting layer, the gloss adjusting layer having a relatively low gloss has a particle size. It is characterized in that a matting agent less than 1.0 times the layer thickness is added.

According to the decorative material of one aspect of the present invention, the thickness of the low-gloss adjusting layer and the particle size of the added matting agent are set to the optimum ranges, so that the gloss-adjusting layer can be observed from an angle. The matte effect can be reduced, and the pattern expressed by the difference in gloss can be made invisible. This makes it possible to provide a decorative material capable of expressing a pattern that can be seen only from a specific observation angle.

It is sectional drawing which shows the decorative material of embodiment which concerns on this invention.

The decorative material 1 according to the embodiment of the present invention will be described with reference to the drawings.
Here, the drawings are schematic, and the relationship between the thickness and the plane dimensions, the ratio of the thickness of each layer, and the like are different from the actual ones. Further, the embodiments shown below exemplify a configuration for embodying the technical idea of the present invention, and the technical idea of the present invention describes the material, shape, structure, etc. of the constituent parts as follows. It is not something that is specific to something. The technical idea of the present invention may be modified in various ways within the technical scope specified by the claims stated in the claims.

(composition)
As shown in FIG. 1, the decorative material 1 of the present embodiment is partially provided on the first gloss adjusting layer 5 provided on the base material 2 and the first gloss adjusting layer 5, and the first A second gloss adjusting layer 6 having a gloss different from the gloss of the gloss adjusting layer 5 is provided. Then, among the first and second gloss adjusting layers 5 and 6, the gloss adjusting layer having a relatively low gloss has a particle size of less than 1.0 times, more preferably 0.9 times or less of the layer thickness. It is important that a matting agent is added. As a result, the matting agent can be exposed on the surface while floating on the gloss adjusting layer. Therefore, it is possible to reduce the unevenness applied to the surface while obtaining a sufficient matting effect by observing from the front, so that the effect of scattering the light incident from an angle is weakened, and when observing from an angle, the effect is weakened. The matting effect can be lowered. Therefore, when observed from an angle, the pattern expressed by the difference in luster, that is, the design can be made invisible.
In addition, as described later, another layer such as a base ink layer 3, a pattern ink layer 4, and a transparent resin layer (not shown) is arranged between the base material 2 and the first gloss adjusting layer 5. May be good. Further, the base ink layer 3 may be, for example, a layer formed by solidly coating the base material 2 with ink.

Here, the layer thickness is the thickness of the resin portion that fills the space between the matting agents when observing the cross section of the gloss adjusting layer having a relatively low gloss. In the present embodiment, the particle size of the matting agent is less than 1.0 times, more preferably 0.9 times or less the layer thickness, so that the matting agent is floating in the gloss adjusting layer or By overlapping a plurality of matting agents, the surface of the gloss adjusting layer is exposed. Therefore, the layer thickness can be measured by measuring the length of the unexposed resin portion of the matting agent or the resin portion between the matting agents at a plurality of locations and averaging the obtained values. Regarding the particle size, when the particle shape is not spherical, the cross section of the particle may be an elliptical shape and the average value of the major axis and the minor axis may be the particle size. That is, in the present embodiment, the particle size is the average particle size when the cross-sectional shape of the particles is assumed to be circular or elliptical.

In addition, the lower limit of the particle size of the matting agent is such that if the particle size becomes too small, the matting effect will be small even when observed from the front, and the required design expression will not be possible. It is preferably 0.2 times the thickness of the gloss adjusting layer having a relatively low gloss.
Regarding the relationship between the layer thickness and the particle size of the matting agent, it is important that the particle size of the matting agent is less than 1.0 times, more preferably 0.9 times or less the layer thickness. The specific size is preferably 2 μm or more and 15 μm or less. Any particle size can be selected within this numerical range. For example, when the layer thickness is set to 5 μm, the particle size of the matting agent may be less than 5 μm, more preferably 4.5 μm or less.

As the matting agent, a commercially available known matting agent or the like can be used. For example, fine particles made of an inorganic material such as silica, glass, alumina, calcium carbonate, barium sulfate, and acrylic can be mentioned. Since the first and second gloss adjusting layers 5 and 6 are required to have high transparency, it is particularly desirable to use fine particles such as silica, glass, and acrylic having high transparency. In particular, among the silica fine particles, a matting agent having a low bulk density in which fine primary particles are secondarily aggregated instead of solid spherical particles has a high matting effect with respect to the amount of addition. Therefore, by using such a matting agent, a gloss adjusting layer having a lower gloss can be formed. As a result, the difference in gloss between the first gloss adjusting layer 5 and the second gloss adjusting layer 6 can be increased, and the obtained unevenness can be increased. This enables a deeper and more excellent design expression.

As described above, the particle size of the matting agent can be arbitrarily selected, but when a known matting agent is used, it is preferably 2 μm or more and 15 μm or less. More preferably, it is 4 μm or more and 12 μm or less. A matting agent having a particle size of less than 2 μm has a low matting effect, so that the unevenness characteristic of the present embodiment cannot be sufficiently obtained. Further, a matting agent having a particle size larger than 15 μm causes a large amount of light scattering, which causes white turbidity of the first and second gloss adjusting layers 5 and 6, and increases the visual graininess. However, the unevenness that is a feature of this embodiment is impaired.
If the matting agent floats in the resin composition constituting the gloss adjusting layer to which the matting agent is added, its specific gravity may be smaller or larger than that of the resin composition. May be good.

Further, the gloss adjusting layer to which the matting agent is added is divided into two equal parts in the layer thickness direction of the gloss adjusting layer, and the layer located on the base material 2 side is the lower layer and is located on the side opposite to the base material 2 side. When the layer is an upper layer, 50% or more of the matting agent added to the gloss adjusting layer may be present in the upper layer. Here, the abundance ratio of the matting agent added to the gloss adjusting layer is defined by the ratio calculated by the area ratio of the matting agent and the resin portion constituting the other gloss adjusting layer when the cross section is observed. Is to be done. That is, the upper layer of the gloss adjusting layer may contain the same amount of matting agent as the lower layer of the gloss adjusting layer or more in terms of area ratio.
With the above configuration, the frequency of overlapping of the plurality of matting agents increases, and a state in which the matting agents are exposed on the surface of the gloss adjusting layer is easily formed.

Examples of the resin portion (resin composition) constituting the first and second gloss adjusting layers 5 and 6 include polyurethane-based, acrylic silicon-based, fluorine-based, epoxy-based, vinyl-based, polyester-based, melamine-based, and amino. Alkyd type, urea type and the like can be used. The form of the resin composition is not particularly limited, such as aqueous, emulsion, and solvent-based. Further, as a curing method of the resin composition, for example, a one-component type, a two-component type, an ultraviolet curing method and the like can be used.

In the present embodiment, a urethane-based resin composition using isocyanate is particularly suitable from the viewpoints of workability, price, cohesive force of the resin itself, and the like. Examples of the isocyanate include tolylene diisocyanate (TDI), xylylene diisocyanate (XDI), hexamethylene diisocyanate (HMDI), diphenylmethane diisocyanate (MDI), lysine diisocyanate (LDI), isophorone diisocyanate (IPDI), and methylhexane diisocyanate (HTDI). ), Bis (isocyanate methyl) cyclohexane (HXDI), trimethylhexamethylene diisocyanate (TMDI) and other derivatives such as adduct, bullet and isocyanurate.

Of these, hexamethylene diisocyanate (HMDI) having a linear molecular structure is preferably used in applications where weather resistance is required. Further, in applications where surface hardness is required, it is preferable to use isophorone diisocyanate (IPDI). Further, it is also effective to use them in a mixed manner in order to combine the advantages of hexamethylene diisocyanate (HMDI) and isophorone diisocyanate (IPDI). In addition to this, when improving the surface hardness, it is preferable to use a resin that is cured by active energy rays such as ultraviolet rays and electron beams. In addition, these resins can be used in combination with each other.

Further, functional additives such as an antibacterial agent and an antifungal agent may be added to the first and second gloss adjusting layers 5 and 6 in order to impart various functions. Further, an ultraviolet absorber and a light stabilizer may be added as needed. As the ultraviolet absorber, for example, a benzotriazole type, a benzoate type, a benzophenone type, or a triazine type can be used. Further, as the light stabilizer, a hindered amine system can be used. Further, when anti-contamination performance and cellophane tape (registered trademark) releasability are required, a releasing agent having a silicone skeleton can be added. In this case, the type of the mold release agent is not particularly limited, but by using a silicone mold release agent having a terminal functional group that is reactive with the resin composition, the antifouling performance and the durability of the cellophane tape releasability can be improved. Can be improved.

In the present embodiment, the first and second gloss adjusting layers 5 and 6 have different glosses from each other. Further, the first gloss adjusting layer 5 covers the entire surface of the base material 2 on the side of the first gloss adjusting layer 5, and the second gloss adjusting layer 6 is on the first gloss adjusting layer 5. Partially covers the surface of the second gloss adjusting layer 6 side. The design is expressed by the difference in gloss between the first and second gloss adjusting layers 5 and 6.
In the present embodiment, the first gloss adjusting layer 5 covers the entire surface of the base material 2 on the first gloss adjusting layer 5 side, but other configurations may be adopted. .. For example, the first gloss adjusting layer 5 may partially cover the surface of the base material 2 on the first gloss adjusting layer 5 side.

Further, among the first and second gloss adjusting layers 5 and 6, a matting agent is added to the gloss adjusting layer having a relatively low gloss. The amount of the matting agent added is preferably 5 parts by mass or more and 40 parts by mass or less with respect to 100 parts by mass of the resin composition. More preferably, it is 10 parts by mass or more and 30 parts by mass or less. If it is less than 5 parts by mass, the matting effect is insufficient, so that the difference in gloss from the relatively high gloss adjustment layer becomes small, the unevenness is insufficient, and the pattern expressed by the difference in gloss. Becomes hard to see. As a result, the sense of design that one wants to express is insufficient. On the other hand, if the amount is larger than 40 parts by mass, the resin composition is relatively insufficient with respect to the matting agent, which causes the matting agent to fall off and the scratch resistance to be lowered due to the falling off, resulting in the decorative material 1. The required durability is greatly impaired.
It is possible to add an arbitrary matting agent even in the gloss adjusting layer having a relatively high gloss. These should be appropriately adjusted according to the final unevenness and design. Further, the matting agent and the resin composition used for the first and second gloss adjusting layers 5 and 6 may be the same or different. These can be freely selected from the unevenness and various required characteristics.

Further, the layer thicknesses of the first and second gloss adjusting layers 5 and 6 can be arbitrarily selected, but as described above, the particle size of the matting agent is preferably 2 μm or more and 15 μm or less, and thus is in the same range. Of these, it is more preferably 2.3 μm or more and 16.7 μm or less. Further, since the first and second gloss adjusting layers 5 and 6 are the outermost layers of the decorative material 1, the wear resistance, scratch resistance, solvent resistance, stain resistance, etc. required for the decorative material 1 are required. Surface physical properties are required. Among them, wear resistance and scratch resistance are affected by the layer thickness, and a thicker layer is more advantageous. Therefore, the more preferable layer thickness of the first and second gloss adjusting layers 5 and 6 is 2.3 μm or more and 12 μm or less. If it is less than 2.3 μm, the wear resistance and the scratch resistance are significantly deteriorated, so that the use as the decorative material 1 may be limited. On the other hand, if it is larger than 16.7 μm, the flexibility of the first and second gloss adjusting layers 5 and 6 themselves deteriorates, so that the processability as the decorative material 1 may deteriorate.

The base material 2 is not particularly limited as long as it is used as the base paper of the decorative material 1. For example, thin leaf paper, resin mixed paper, titanium paper, resin impregnated paper, flame-retardant paper, inorganic paper and other papers, woven or non-woven fabrics made of natural fibers or synthetic fibers, homo or random polypropylene resin, polyethylene resin and other polyolefin resins. , Copolymerized polyester resin, crystalline polyester resin in amorphous state, polyethylene naphthalate resin, polybutylene resin, acrylic resin, polyamide resin, polycarbonate resin, polyvinyl chloride resin, polyvinylidene chloride resin, fluororesin, etc. Base material, wood single plate, projecting plate, plywood, laminated material, particle board, wood-based base material such as medium-density fiber plate, inorganic base material such as gypsum plate, cement plate, calcium silicate plate, ceramic plate, iron, copper , A metal-based base material such as aluminum and stainless steel, or a conventionally known material such as a composite material or a laminate thereof can be used. Further, as the shape of the base material 2, for example, a film shape, a sheet shape, a plate shape, a deformed molded body or the like can be used.

A pattern ink layer 4 for adding a pattern to the decorative material 1 can be provided between the base material 2 and the first gloss adjusting layer 5. As the pattern, for example, a wood grain pattern, a stone grain pattern, a sand grain pattern, a tiled pattern, a brickwork pattern, a cloth grain pattern, a leather squeezing pattern, a geometric figure, or the like can be used. In the example of FIG. 1, the pattern ink layer 4 is formed in a portion directly below the second gloss adjusting layer 6. Further, the pattern pattern of the pattern ink layer 4 is not synchronized with the gloss of the second gloss adjusting layer 6, and expresses a pattern pattern completely different from the gloss of the second gloss adjusting layer 6. In other words, the pattern expressed by the difference in gloss of the second gloss adjusting layer 6 expresses a pattern completely different from the pattern of the pattern ink layer 4 as a design.

Further, between the base material 2 and the pattern ink layer 4, a base ink layer 3 that covers the entire surface of the base material 2 on the side of the first gloss adjusting layer 5 is provided according to the required design. You may. Further, the base ink layer 3 may be formed into two or more layers, if necessary, such as hiding property. Further, the pattern ink layer 4 may be formed by laminating as many plates as necessary to express the required design. As described above, the pattern ink layer 4 and the base ink layer 3 have various combinations depending on the required design, that is, the design to be expressed, but are not particularly limited.

The constituent materials of the base ink layer 3 and the pattern ink layer 4 are not particularly limited. For example, a printing ink or coating agent obtained by dissolving and dispersing a matrix and a colorant such as a dye or a pigment in a solvent can be used. Examples of the matrix include oil-based vitrified cotton resin, two-component urethane resin, acrylic resin, styrene resin, polyester resin, urethane resin, polyvinyl resin, alkyd resin, epoxy resin, melamine resin, and fluorine resin. Various synthetic resins such as resins, silicone-based resins, and rubber-based resins, or mixtures thereof, copolymers, and the like can be used. Examples of colorants include inorganic pigments such as carbon black, titanium white, zinc flower, petals, yellow lead, dark blue, and cadmium red, azo pigments, lake pigments, anthraquinone pigments, phthalocyanine pigments, and isoindolinone pigments. , Organic pigments such as dioxazine pigments, or mixtures thereof. As the solvent, for example, toluene, xylene, ethyl acetate, butyl acetate, methyl alcohol, ethyl alcohol, isopropyl alcohol, acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, water and the like, or a mixture thereof can be used. ..
Further, in order to impart various functions to the base ink layer 3 and the pattern ink layer 4, for example, an extender pigment, a plasticizer, a dispersant, a surfactant, a tackifier, an adhesive aid, a desiccant, and a curing agent. , Functional additives such as curing accelerators and curing retarders may be added.

The base ink layer 3, the pattern ink layer 4, and the first and second gloss adjusting layers 5 and 6 are, for example, a gravure printing method, an offset printing method, a screen printing method, an electrostatic printing method, an inkjet printing method, or the like. It can be formed by various printing methods. Further, since the base ink layer 3 and the first gloss adjusting layer 5 cover the entire surface of the base material 2 on the side of the first gloss adjusting layer 5, for example, a roll coating method, a knife coating method, or a micro It can also be formed by various coating methods such as a gravure coating method and a die coating method. These printing methods and coating methods may be selected separately depending on the layer to be formed, or the same method may be selected for batch processing.

In order to adjust the layer thicknesses of the first and second gloss adjusting layers 5 and 6, the coating amount may be adjusted in the above-mentioned printing method and coating method. The coating amount can be calculated from the mass difference between the one in which the gloss adjusting layer is formed on the base material 2 and the one in which the gloss adjusting layer is not formed in various printing methods and coating methods. The relationship between the coating amount and the layer thickness can be obtained by observing the cross section.

Further, when abrasion resistance is particularly required, a transparent resin layer (not shown) can be provided between the pattern ink layer 4 and the first gloss adjusting layer 5. As the transparent resin layer, for example, it is preferable to use a resin composition containing an olefin resin as a main component. Examples of the olefin resin include α-olefins (eg, propylene, 1-butene, 1-pentene, 1-hexene, 1-heptene, 1-octene, 1-nonene, 1) in addition to polypropylene, polyethylene, polybutene and the like. -Deceene, 1-ethylene, 1-dodecene, tridecene, 1-tetradecene, 1-pentadecene, 1-hexadecene, 1-heptadecene, 1-octadecene, 1-nonadecene, 1-eicosene, 3-methyl-1-butene, 3 -Methyl-1-pentene, 3-ethyl-1-pentene, 4-methyl-1-pentene, 4-methyl-1-hexene, 4,4-dimethyl-1-pentene, 4-ethyl-1-hexene, 3 -Ethylene-1-hexene, 9-methyl-1-decene, 11-methyl-1-dodecene, 12-ethyl-1-tetradecene, etc.) are homopolymerized or copolymerized with two or more types, ethylene / vinyl acetate. Copolymer, ethylene / vinyl alcohol copolymer, ethylene / methyl methacrylate copolymer, ethylene / ethyl methacrylate copolymer, ethylene / butyl methacrylate copolymer, ethylene / methyl acrylate copolymer, ethylene / ethyl acrylate copolymer A product obtained by copolymerizing ethylene or α-olefin with other monomers, such as a coalescence, an ethylene / butyl acrylate copolymer, or the like, can be used. In particular, when further improving the surface strength, it is preferable to use highly crystalline polypropylene.

Further, for example, additives such as a heat stabilizer, an ultraviolet absorber, a light stabilizer, a blocking inhibitor, a catalyst scavenger, and a colorant may be added to the transparent resin layer. These additives can be appropriately selected from known additives and used. Further, the transparent resin layer can be formed by various laminating methods such as a method applying heat pressure, an extrusion laminating method, and a dry laminating method.

(Action and others)
(1) As described above, in the decorative material 1 of the present embodiment, of the first gloss adjusting layer 5 and the second gloss adjusting layer 6, the gloss adjusting layer having a relatively low gloss has a particle size. A matting agent less than 1.0 times the layer thickness, more preferably 0.9 times or less, was added. Therefore, the matting agent can be exposed to the surface while floating on the gloss adjusting layer. Therefore, it is possible to reduce the unevenness applied to the surface while obtaining a sufficient matting effect by observing from the front, so that the effect of scattering the light incident from an angle is weakened, and when observing from an angle, the effect is weakened. The matting effect can be lowered. Therefore, when observed from an angle, the pattern expressed by the difference in luster, that is, the design can be made invisible.
As a result, the pattern that can be seen when observed from the front becomes invisible when observed from an angle. As a result, it is possible to provide the decorative material 1 capable of expressing a pattern that can be seen only from a specific observation angle. Then, it is possible to provide the decorative material 1 that enables a design expression with a high message property so that the pattern expressed due to the difference in gloss becomes invisible depending on the observation angle.

(2) Further, in the decorative material 1 of the present embodiment, a matting agent made of an inorganic material having a high matting effect is used. Therefore, the gloss of the added gloss adjusting layer can be greatly reduced. Therefore, the difference between the gloss of the first gloss adjusting layer 5 and the gloss of the second gloss adjusting layer 6 can be increased. As a result, the pattern expressed by the difference in luster can be visually recognized more clearly by observing from the front.

(3) Further, in the decorative material 1 of the present embodiment, the particle size of the matting agent is set within the range of 2 μm or more and 15 μm or less, and by setting the particle size within the optimum range, the surface strength and designability required for the decorative material 1 can be obtained. It is compatible.

(4) Further, in the decorative material 1 of the present embodiment, the amount of the matting agent is in the range of 5 parts by mass or more and 40 parts by mass or less with respect to 100 parts by mass of the resin composition constituting the gloss adjusting layer having a relatively low gloss. It was added inside. Therefore, since the gloss of the added gloss adjusting layer can be reliably lowered, the pattern expressed by the difference in gloss can be more clearly and surely visually recognized by observing from the front.

(5) Further, in the decorative material 1 of the present embodiment, the gloss adjusting layer to which the matting agent is added is divided into two equal parts in the layer thickness direction of the gloss adjusting layer, and the layer located on the base material 2 side is used as the lower layer. When the layer located on the side opposite to the base material 2 side was used as the upper layer, 50% or more of the matting agent added to the gloss adjusting layer was present in the upper layer. Therefore, the matting agent can be sufficiently exposed on the surface of the gloss adjusting layer. By doing so, it is possible to reduce the unevenness given to the surface while obtaining a sufficient matting effect by observing from the front, so that the effect of scattering the light incident from an angle is weakened, and the observation is performed from an angle. The matting effect can be reduced. Therefore, when observed from an angle, the pattern expressed by the difference in luster, that is, the design can be made invisible.

(6) Further, in the decorative material 1 of the present embodiment, the matting agent is added to the gloss adjusting layer having a relatively high gloss. Even in such a form, the effect of scattering light incident from an angle is weakened, and the matting effect when observed from an angle can be reduced. Therefore, when observed from an angle, the pattern expressed by the difference in luster, that is, the design can be made invisible. As a result, the pattern that can be seen when observed from the front becomes invisible when observed from an angle. As a result, it is possible to provide the decorative material 1 capable of expressing a pattern that can be seen only from a specific observation angle.

(7) Further, in the decorative material 1 of the present embodiment, the particle size of the matting agent is set to 0.2 times or more the thickness of the gloss adjusting layer to which the matting agent is added. Therefore, a sufficient matting effect can be surely obtained even when observed from the front, and the required design expression becomes possible.

Hereinafter, examples of the decorative material 1 of the present invention will be described.
<Example 1>
In Example 1, an impregnated paper having a basis weight of 50 g / m ² (GFR-506: manufactured by Kohjin Co., Ltd.) was used as the base material 2. Then, on one surface of the base material 2, an oil-based nitrified cotton resin-based gravure printing ink (PCNT (PCRNT) color: manufactured by Toyo Ink Co., Ltd.) is used to apply the base ink layer 3 and the pattern ink layer 4. It was formed in this order. The pattern of the pattern ink layer 4 was a wood grain pattern.

Subsequently, the ink for the first gloss adjusting layer 5 is applied onto the base material 2 on which the pattern ink layer 4 is formed so as to cover the entire surface of one surface of the base material 2, and the first gloss adjusting layer is coated. 5 was formed. The ink is 100 parts by mass of acrylic polyol (6KW-700: manufactured by Taisei Fine Chemical Ltd.), 8 parts by mass of silica-based matting agent (Mizukasil 310P: manufactured by Fuji Silysia Chemical Ltd.), and polyisocyanate (cured by UR190B). Agent: Toyo Ink Co., Ltd.) Consists of 10 parts by mass. The amount of ink applied was 3.5 g / m ² . As a result of cross-sectional observation, the layer thickness was 3.2 μm. The average particle size of the silica-based matting agent was 2.7 μm. Next, the ink for the second gloss adjusting layer 6 was applied to the portion directly above the pattern ink layer 4 on the first gloss adjusting layer 5, to form the second gloss adjusting layer 6. The ink is 100 parts by mass of acrylic polyol (6KW-700: manufactured by Taisei Fine Chemical Ltd.), 3 parts by mass of silica-based matting agent (Mizukasil 310P: manufactured by Fuji Silysia Chemical Ltd.), and polyisocyanate (UR190B cured). Agent: Toyo Ink Co., Ltd.) Consists of 10 parts by mass. The average particle size of the silica-based matting agent was 2.7 μm.

<Example 2>
In the second embodiment, the ink for the first gloss adjusting layer 5 is applied onto the base material 2 on which the pattern ink layer 4 is formed so as to cover the entire surface of one surface of the base material 2, and the first gloss is applied. The adjusting layer 5 was formed. The ink is 100 parts by mass of acrylic polyol (6KW-700: manufactured by Taisei Fine Chemical Co., Ltd.), 8 parts by mass of silica-based matting agent (ACEMATT OK900: manufactured by Evonik Industries, Ltd.), and polyisocyanate (UR190B curing agent: Toyo Ink). (Manufactured by Co., Ltd.) Consists of 10 parts by mass. The average particle size of the silica-based matting agent was 7.5 μm. The amount of ink applied was 9 g / m ² . As a result of cross-sectional observation, the layer thickness was 8.6 μm. Next, the ink for the second gloss adjusting layer 6 is applied only to the portion on the first gloss adjusting layer 5 that is directly above the pattern ink layer 4, so that the second gloss adjusting layer 6 is applied. Was formed. The ink is 100 parts by mass of acrylic polyol (6KW-700: manufactured by Taisei Fine Chemical Co., Ltd.), 3 parts by mass of silica-based matting agent (ACEMATT OK900: manufactured by Evonik) with an average particle size of 7.5 μm, and polyisocyanate. (UR190B hardener: manufactured by Toyo Ink Co., Ltd.) Consists of 10 parts by mass. Other than that, the configuration was the same as that of the first embodiment.

<Example 3>
In Example 3, the ink for the first gloss adjusting layer 5 is applied onto the base material 2 on which the pattern ink layer 4 is formed so as to cover the entire surface of one surface of the base material 2, and the first gloss is applied. The adjusting layer 5 was formed. The ink is 100 parts by mass of acrylic polyol (6KW-700: manufactured by Taisei Fine Chemical Co., Ltd.), 8 parts by mass of silica-based matting agent (ACEMATT 810: manufactured by Evonik Industries, Ltd.), and polyisocyanate (UR190B curing agent: Toyo Ink). (Manufactured by Co., Ltd.) Consists of 10 parts by mass. The average particle size of the silica-based matting agent was 10.5 μm. The amount of ink applied was 12.5 g / m ² . As a result of cross-sectional observation, the layer thickness was 12.2 μm. Next, the ink for the second gloss adjusting layer 6 is applied only to the portion on the first gloss adjusting layer 5 that is directly above the pattern ink layer 4, so that the second gloss adjusting layer is applied. 6 was formed. The ink is 100 parts by mass of acrylic polyol (6KW-700: manufactured by Taisei Fine Chemical Co., Ltd.), 3 parts by mass of silica-based matting agent (ACEMATT 810: manufactured by Evonik) with an average particle size of 10.5 μm, and polyisocyanate. (UR190B hardener: manufactured by Toyo Ink Co., Ltd.) Consists of 10 parts by mass. Other than that, the configuration was the same as that of the first embodiment.

<Comparative example 1>
In Comparative Example 1, the ink for the first gloss adjusting layer 5 having the same composition as that of Example 1 was applied onto the base material 2 on which the pattern ink layer 4 was formed so that the coating amount was 2.5 g / m ^2. It was applied so as to cover the entire surface of one surface of 2. Other than that, the first gloss adjusting layer 5 and the second gloss adjusting layer 6 were formed in the same manner as in Example 1 to obtain a decorative material 1. The layer thickness of the first gloss adjusting layer 5 at this time was 2.3 μm as a result of cross-sectional observation.

<Comparative example 2>
In Comparative Example 2, the ink for the first gloss adjusting layer 5 having the same composition as that of Example 2 was applied onto the base material 2 on which the pattern ink layer 4 was formed so that the coating amount was 7.0 g / m ^2. It was applied so as to cover the entire surface of one surface of 2. Other than that, the first gloss adjusting layer 5 and the second gloss adjusting layer 6 were formed in the same manner as in Example 2 to obtain a decorative material 1. The layer thickness of the first gloss adjusting layer 5 at this time was 6.8 μm as a result of cross-sectional observation.

<Comparative example 3>
In Comparative Example 3, the ink for the first gloss adjusting layer 5 having the same composition as that of Example 3 was applied onto the base material 2 on which the pattern ink layer 4 was formed so that the coating amount was 10.0 g / m ^2. It was applied so as to cover the entire surface of one surface of 2. Other than that, the first gloss adjusting layer 5 and the second gloss adjusting layer 6 were formed in the same manner as in Example 3 to obtain a decorative material 1. The layer thickness of the first gloss adjusting layer 5 at this time was 9.7 μm as a result of cross-sectional observation.

<Evaluation>
The design and glossiness of Examples 1 to 3 and Comparative Examples 1 to 3 were evaluated.
<Design>
The design of the decorative material 1 was observed from the front and diagonally. Then, "○" indicates that the pattern (design) due to the difference in gloss cannot be seen when observed from an angle, and "△" indicates that the pattern (design) due to the difference in gloss is considerably weakened when observed from an angle. The case where the pattern (design) due to the difference in luster can be seen without changing when observed from an angle is marked with "x".
<Glossiness>
The glossiness of 20 °, 60 °, and 85 ° in the first gloss adjusting layer 5, that is, the gloss adjusting layer having a relatively low gloss was measured.

The results of these evaluations are shown in Table 1.

In the decorative materials 1 of Examples 1 to 3, as shown in Table 1, it is expressed by the difference between the gloss of the first gloss adjusting layer 5 and the gloss of the second gloss adjusting layer 6 when observed from an angle. It can be seen that the pattern (design) disappears. That is, it can be seen that it is possible to express a pattern that can be seen only from a specific observation angle. On the other hand, in the decorative materials of Comparative Examples 1 to 3, no change is observed in the pattern (design) expressed by the difference in gloss even when observed from an angle. Further, these observation results also appear in the measurement results of the glossiness, and in Examples 1 to 3, the 85 ° glossiness corresponding to the oblique observation can be increased, so that the first gloss adjustment layer 5 and the first gloss adjustment layer 5 and the first The difference in glossiness (difference in gloss) from the gloss adjustment layer 6 of 2 can be reduced. As a result, it is considered that the design expressed by the difference in luster is not visible.
The decorative material of the present invention is not limited to the above-described embodiments and examples, and various modifications can be made as long as the characteristics of the invention are not impaired.

1 Decorative material 2 Base material 3 Base ink layer 4 Pattern ink layer 5 First gloss adjustment layer 6 Second gloss adjustment layer

Claims (10)

A first gloss adjusting layer provided on the base material and a second gloss adjusting layer partially provided on the first gloss adjusting layer and having a gloss different from the gloss of the first gloss adjusting layer. With and
Among the second luster control layer and the first luster control layer, the low luster control layer having a relatively glossy, and particle size are added matting agent is less than 1.0 times the thickness ,
The gloss adjusting layer to which the matting agent is added is divided into two equal parts in the layer thickness direction of the gloss adjusting layer, and the layer located on the base material side is the lower layer and is located on the side opposite to the base material side. When the layer is an upper layer, 50% or more of the matting agent added to the gloss adjusting layer is present in the upper layer.
The matting agent, decorative material, characterized in Oh Rukoto the primary particles are formed by secondary aggregate particles. The decorative material according to claim 1, wherein the matting agent is made of an inorganic material. The decorative material according to claim 1 or 2, wherein the matting agent has a particle size in the range of 2 μm or more and 15 μm or less. The matting agent is characterized in that it is added in a range of 5 parts by mass or more and 40 parts by mass or less with respect to 100 parts by mass of the resin composition constituting the gloss adjusting layer to which the matting agent is added. The decorative material according to any one of claims 1 to 3. The decorative material according to any one of claims 1 to 4 , wherein the matting agent is also added to a gloss adjusting layer having a relatively high gloss. 5. The content of the matting agent added to the first gloss adjusting layer is larger than the content of the matting agent added to the second gloss adjusting layer, according to claim 5. The listed cosmetic material. 5. The decorative material described in. The item according to any one of claims 1 to 7 , wherein the particle size of the matting agent is 0.2 times or more the thickness of the gloss adjusting layer to which the matting agent is added. Cosmetic material. The resin composition constituting the first gloss adjusting layer and the second gloss adjusting layer is characterized by being a fluorine-based, vinyl-based, polyester-based, melamine-based, aminoalkyd-based, or urea-based resin. The decorative material according to any one of claims 1 to 8. The decorative material according to any one of claims 1 to 9, wherein the matting agent is made of silica, glass, alumina, calcium carbonate, barium sulfate, or acrylic.

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